NSN 5305-00-721-4612, (5305007214612) Parts Inventory

Item Name	Screw Shoulder
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5305 Screws
National Item Identification Number (NIIN)	00-721-4612 (007214612)
NCB Code	USA (00)
Manufacturer	Rockwell Collins Aerospace

Part Number	Manufacturer	Item Name	Cage Code	RFQ
558-1681-002	rockwell collins aerospace	screw shoulder	13499	RFQ

MRC	Criteria	Characteristic
AAJD	THREAD CLASS	2A
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	0.298 INCHES MINIMUM
AASK	HEAD STYLE	HEXAGON
AASU	HEAD HEIGHT	0.094 INCHES NOMINAL
AATN	SHOULDER DIAMETER	0.156 INCHES NOMINAL FIRST SHOULDER
AATX	SHOULDER LENGTH	0.109 INCHES NOMINAL FIRST SHOULDER
AHYM	NOMINAL THREAD DIAMETER	0.138 INCHES
CMLP	THREAD QUANTITY PER INCH	32
CWYB	SHOULDER SHAPE	ROUND FIRST SHOULDER
FEAT	SPECIAL FEATURES	SHANK UNDERCUT BELOW SHOULDER 0.097 IN. DIA BY 0.040 IN. W
MATT	MATERIAL	STEEL COMP 303 OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTT	SURFACE TREATMENT	PASSIVATE OVERALL
THSD	THREAD SERIES DESIGNATOR	UNC
AASB	FASTENER LENGTH	0.407 INCHES NOMINAL
AATB	WIDTH BETWEEN FLATS	0.250 INCHES NOMINAL